Playposit (formerly known as eduCanon) - a tool to create and share interactive videos for active learning.
An example of interactive video by PlayPosit
Educreations - Educreations is a unique interactive whiteboard and screencasting tool that's simple, powerful, and fun to use. Annotate, animate, and narrate nearly any type of content as you explain any concept. Free app available for download in iTunes.
PowToon - a tool to create animated videos and presentations.